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The role of credit default swaps during the subprime mortgage crisis in 2007-2009
Lazukićová, Andrea ; Teplý, Petr (advisor) ; Vozková, Karolína (referee)
This thesis focuses on the role of credit default swaps during the subprime mortgage crisis 2007-2009 with special focus on mortgage-backed securities. In the empirical part of the thesis, three models are constructed. All of them have the same dependent variable, a mortgage delinquency rate in the 2005-2010 period, and independent variables representing various types of credit default swaps issued. Streamlined in each model, credit default swaps (CDS) were divided based on certain criteria (underlying sectors, maturity and ranking) and subsequently compared and analysed. By using the probit model, the main research question "How the probability of mortgage delinquency depends on the volume of credit default swaps issued?" was inspected. The contribution of this thesis is three-fold. First, we show that a delinquency rate of mortgages was correlated with the maturity of CDS issued (the delinquency rate was higher for short-term loans). Second, we state that the volume of subprime loans increased along with the volume of issued CDS, what contradicts to the insurance nature of a CDS. Finally, a mortgage delinquency rate was lower in the 2006-2008 period than in 2009-2011, what implies the domino effect of failing mortgages had an immense impact even after the global crisis.
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The role of credit default swaps during the subprime mortgage crisis in 2007-2009
Lazukićová, Andrea ; Teplý, Petr (advisor) ; Vozková, Karolína (referee)
This thesis focuses on the role of credit default swaps during the subprime mortgage crisis 2007-2009 with special focus on mortgage-backed securities. In the empirical part of the thesis, three models are constructed. All of them have the same dependent variable, a mortgage delinquency rate in the 2005-2010 period, and independent variables representing various types of credit default swaps issued. Streamlined in each model, credit default swaps (CDS) were divided based on certain criteria (underlying sectors, maturity and ranking) and subsequently compared and analysed. By using the probit model, the main research question "How the probability of mortgage delinquency depends on the volume of credit default swaps issued?" was inspected. The contribution of this thesis is three-fold. First, we show that a delinquency rate of mortgages was correlated with the maturity of CDS issued (the delinquency rate was higher for short-term loans). Second, we state that the volume of subprime loans increased along with the volume of issued CDS, what contradicts to the insurance nature of a CDS. Finally, a mortgage delinquency rate was lower in the 2006-2008 period than in 2009-2011, what implies the domino effect of failing mortgages had an immense impact even after the global crisis.
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Short-Term Determinants of the Idiosyncratic Sovereign Risk Premium: A Regime-Dependent Analysis for European Credit Default Swaps
Calice, Giovanni ; Miao, RongHui ; Štěrba, Filip ; Vašíček, Bořek
This study investigates the dynamic behavior of the sovereign CDS term premium for a group of European countries. The CDS term premium can be regarded as a forward- looking measure of idiosyncratic sovereign default risk as perceived by financial markets in real time. Using a Markov-switching unobserved component model, we decompose the daily CDS term premium into two unobserved components of statistically different nature (stationary and nonstationary) and study the determinants of their short-term dynamics. Specifically, we link these components in a vector autoregression to various daily observed financial market variables. We find that decomposition into the two components is vital for understanding the short-term dynamics of the entire CDS term premium. The strongest impacts can be attributed to CDS market liquidity, local stock returns, and overall risk aversion. By contrast, the impact of shocks from the sovereign bond market is rather muted. Therefore, the CDS market microstructure effect and investor sentiment play the main roles in sovereign risk evaluation in real time. Moreover, our results suggest that the response of the CDS term premium to shocks to financial variables is regime-dependent and can be ten times stronger during periods of high volatility.
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